ledbar/firmware/ledbar.h

#ifndef _LEDBAR_H
#define _LEDBAR_H

#include <stdint.h>

#define LEDBAR_ROWS 7
#define LEDBAR_COLS 128

const uint8_t LEDBAR_PIN_ROWS[LEDBAR_ROWS] = { 8, 7, 6, 5, 4, 3, 2 };
const uint8_t LEDBAR_PIN_STROBE = 9;

typedef enum {
  LEDBAR_FRONTBUF,
  LEDBAR_BACKBUF
} ledbar_buf_t;

void ledbar_init(void);
void ledbar_wait_vsync(void);
void ledbar_swap_buf(void);
void ledbar_clear(ledbar_buf_t buf);
void ledbar_setchar(ledbar_buf_t buf, int16_t col, uint8_t ch);
void ledbar_settext(ledbar_buf_t buf, int16_t col, const char* text, uint8_t spacing = 1);

#endif // _LEDBAR_H